Symplectic geometry seminar

Date:
Apr
17
2026

IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar

Polytopes and $C^0$-Riemannian Metrics with Positive Topological Entropy
Marcelo Alves
9:15am|Remote Access

The topological entropy of geodesic flows has been extensively studied since the foundational works of Dinaburg and Manning. It measures the exponential complexity of the geodesic flow of a Riemannian manifold, and there are several results...

Apr
21
2026

Joint IAS/PU Symplectic Geometry Seminar

Frobenius Structures on Quantum Connections of Calabi--Yau 3-Folds
Jae Hee Lee
1:00pm|Simonyi 101 and Remote Access

The quantum connection is a flat connection arising from genus 0 Gromov--Witten theory. They can be defined integrally for sufficiently positive symplectic manifolds, allowing one to consider their characteristic p or p-adic versions which bear...

Apr
24
2026

IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar

Density of Fibers for the Filtered Fukaya Category of a Cotangent Bundle
Stéphane Guillermou
9:15am|Remote Access

A well-known result of Abouzaid says that the wrapped Fukaya category of a cotangent bundle is generated by one cotangent fiber. In the filtered case this is not true, but the filtered Fukaya category comes with a notion of interleaving distance. We...

May
01
2026

IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar

Legendrian and Lagrangian Higher Torsion
Daniel Álvarez-Gavela
9:15am|Remote Access

The theory of higher Reidemeister torsion yields characteristic classes of (stable) fiber bundles of smooth manifolds. We use this theory to define a new family of invariants for Legendrians in 1-jet spaces which we collectively call Legendrian...

May
08
2026

IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar

ECH Constraints and Twist Dynamics in the Spatial Isosceles Three-Body Problem
Pedro Salomão
9:15am|Remote Access

In this talk, I will describe the global dynamics of the spatial isosceles three-body problem, using ideas from Embedded Contact Homology. For energies below the critical level, the flow admits a disk-like global surface of section bounded by the...